Nanometer anhydrous cooling liquid for construction machinery equipment

Abstract

The invention discloses a nanometer anhydrous cooling liquid for construction machinery equipment. The nanometer anhydrous cooling liquid comprises, by mass, 60 to 80 parts of propylene glycol, 5 to 10 parts of a nano-oxide, 3 to 6 parts of 2-thiobenzothiazole, 4 to 7 parts of triazole toluene, 1 to 5 parts of polyamino acid, 1 to 2 parts of sodium nitrate, 1 to 3 parts of sebacic acid, 0.5 to 2 parts of methyl orthosilicate and 0.2 to 1 part of an organic silicon defoaming agent. Through use of a metal oxide nanofluid having thermal conductivity multiple times higher than that of the conventional fluid cooling medium, the heat exchange capacity of the cooling system is doubled and the property defect of low propylene glycol thermal conductivity is solved. The high boiling point (187 DEG C) of the fluid medium is suitable for long-term continuous operation of the large-power high-load machinery equipment under a high temperature and high pressure. The high heat produced by the construction machinery equipment operation aggravates movement and energy transfer intensity of the oxide nanoparticles so that heat exchange efficiency is improved, the pump power of the cooling system underthe same heat exchange demand is reduced and a service life of the cooling liquid is prolonged.

Description

technical field [0001] The invention relates to the technical field of construction machinery and equipment, in particular to a nano anhydrous cooling liquid for construction machinery. Background technique [0002] At present, the engines of construction machinery and equipment operating at or near the rated power for a long time can be diesel engines, gasoline engines or engines using other fuels. Construction machinery and equipment have a fixed unit with high output power. Due to the maximum combustion effective pressure, output power, and operating temperature of the heavy-duty engine cylinder of construction machinery and equipment, the heat generated is much larger, and it is usually at or near the maximum load. Under long-term operation, it is difficult for the water-glycol system engine coolant to fully meet the requirements. The cooling system usually corrodes, damages and replaces it after several years of operation. Problems such as dirt are more prominent. Co...

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Problems solved by technology

Construction machinery and equipment have a fixed unit with high output power. Due to the maximum combustion effective pressure, output power, and operating temperature of the heavy-duty engine cylinder of construction machinery and equipment, the heat generated is much larger, and it is usually at or near the maximum load. Under long-term operation, it is difficult for the water-glycol system engine coolant to fully meet the requirements. The cooling system usually corrodes, damages and replaces it after several years of operation. Dirt and other problems are more prominent